1 Participation of the Joint Institute for Nuclear Research (Dubna) in PANDA experiment at Future GSI Facility Nuclear Structure Physics Physics with Antiprotons Nuclear Matter Physics Plasma Physics Atomic Physics A.G.Olchevski January 2005

2 JINR-GSI Workshop on future GSI facility, November 2003,Dubna

3 GENERAL PANDA CBM Program of JINR-GSI Workshop on future GSI facility

4 Participation of the Joint Institute for Nuclear Research (Dubna) in the Future GSI Facility Possible JINR Contributions: ● Magnets of SIS100 ● CBM Experiment ● PANDA experiment ● New projects (spin-physics, antihydrogen, mesoatoms, etc.) JINR interests at GSI: ● Accelerator Physics ● Nuclear Matter ● Physics with Antiprotons ● Applications

5 ● Excited glue (glueballs and hybrids) ● Charm in Nuclei, Charmonium ● Hadrons in Matter ● Hypernuclei, etc. Using the ALICE experience the JINR team is capable to design and construct the magnet system (superconducting solenoid and conventional dipole) for PANDA And also make contributions to the PANDA detectors: ● DIRC (Rich detector) ● MDC (Mini Drift Chambers) ● Muon Detector  Straw Detector  Forward RICH PANDA Experiment

6 Superconducting Solenoid (2T) and DM with water cooled winding (2 Tm)

7 Cross-section of the dipole magnet Cross-section of the solenoid

8 JINR team opportunities and actions On-site coil winding facilities (solenoid & dipole) are available; On-site cryogenic facilities to test coils are available; A number of enterprises contacted in contest of the construction PANDA magnets: MKB “Raduga”, “Energomash”, MKB “Fakel”, NPO “Lavochkin”, NPO “GELIYMASH”; Management of Russian Ministry of Industry dealing with the conversion of the military industry has contacted to provide government support to build magnets in Russia.

9 JINR facility for winding of flat pancakes

10 DIRC less space than aerogels costs of calorimeter no problems with field Detecting Internally Reflected Č-light (existing at BaBar) PMTs !

11 Participation in DIRC JINR group (in collaboration with KBSU (Nalchik) and FGUP “GRAN”) intends to take part in R&D on MCP – PMT. The R&D will include improvements in MCP PMT manufacturing, development of new photocathode and readout techniques. New type of photon detectors – Si-MCP, based on photolithographic masking of the channel pattern on the Si surface are on consideration also. These newly emerged Si based MCP could open completely new possibilities in the photon detector technology. Fused silica/quartz from Russian industry as a base material for DIRC radiators will be tested.

12 Photon Detectors

13 Construction of the MDC prototype flux – up to 10 5 cm -2 c -1 magnetic field – 2T·m spatial resolution  200  m

14 Proposed design 2 semi-circular parts, R=900 mm 6 drift cell layers of the coordinate doublets (XX', UU', VV'). 3 mm cell width and 3 mm gap between the sensitive wire plane and the cathode. Protvino, HERMES design

15 The MDC prototype –One semi-circular plane –256 signal wires –Test of different variants of electronics – Gas choice

16 MDC potential frame

17 Muon Tracker for PANDA Previous JINR/DLNP Lab experience in technology: DELPHI (CERN/LEP), D0 (FNAL/Tevatron), COMPASS (CERN/SPS) Muon tracker based on Iarocci tubes' modification: Mini-Drift Tubes (MDTs) Main purpose: L2/L3 muon trigger/filter with precise muon pattern ID Total for PANDA: MDTs detectors (wires & strips r/o), TDCs channels, FADCs channels Estimated cost (joint Dubna/Torino resources): about 1 M Euro, (f/e electronics requires additional evaluation) MDTs production rate at JINR central workshop detectors/day, so matches reliably PANDA' construction timetable

18 Central Tracking Detectors example event: pp  f f  4K Straw-Tubes: 15 skewed double-layers

19 Forward RICH The RICH for PANDA is optimized for the particles identification in the momentum range from 0.6 GeV/c up to 10 GeV/c and an angular range 1°- 22°.

20 Forward RICH The design of the forward Ring Image Cherenkov detector with achromatic and short focusing optics has been considered and detailed simulation is performed Optical Scheme The proposed RICH scheme is fitted well to the PANDA setup and provides excellent PID features Research of optical materials and the photo- detectors for the RICH is in progress.

21 Possible contribution of JINR to PANDA Superconducting Solenoid + Cryogenics Conventional Dipole Magnet DIRC Detector (radiators & photo detectors) MDC (Mini Drift Chambers) Muon Detector and electronics Straw Detector Forward RICH